Detachable backing frame or case for drawing-tablets



(No Model.)

B. E. FORBRIGER.

DETAGHABLE BACKING FRAME 0R CASE FOR DRAWING TABLETS.

No. 391,602. x PatentedOot.-Z3, 1888.

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BERTHA E. FORBRIGER,

or CINCINNATI, onto.

DETACHABLE BACKING FRAME 0R CASE FOR DRAWING-TABLETS.

SPECIFICATION forming part of Letters Patent No. 391,602, dated October23, 1888.

Application filed April 6, 1898. Serial No. 269,894. (No model.)

To aZZ whom it may concern:

Be it known that I, BER'll-IA E. FORBRIGER, a citizen of the UnitedStates, residing at Gincinnati, in the county of Hamilton and State ofOhio, have invented certain new and useful Improvements in DetachableBacki n g Frames or Cases for Drawing-Tablets, Musicliooks, 800., ofwhich the following is a specification.

My invention relates to a removable covering frame or backing fordrawing tablets, whereby the several sheets composing the same are keptclean and intact and the work done on them preserved in proper conditionfor future reference from lillIlG to time; and my invention consists, inthe first part, in the provision, in connection with a drawing-tab letcomposed of a number of specimen or eX- ercise working-sheets, of aremovable case or backing frame made of any suitable textile fabricsuchas colored muslin, or the like turned upwardly and inwardly at its edgesto encompass or engage the outer edges of said tablet, and having atightening cord or tape at its inner edges to (.letaehably secure it inplace.

My invention further consists in the provision, in connection with adrawing-tablet and the aforesaid removable backing frame or case havinga draw-string or tightening-cord, ofstiff metallic split rings orfastening hingeeyes in one end of the tablet loosely binding its severalsheets together, so that each top sheet can be turned back thereon andfolded against the bottom sheet after an exercise or specimen figure hasbeen copied and the sheet completed, and also receiving and holding thedrawingpencil, crayon, or writing-pen when not in use.

Other features of my invention will be fully set forth in the followingdescription of the accompanying drawings, in which- Figure 1 is a planview showing my invention complete in its preferred form 5 Fig. 2, alongitudinal section on line 0000, Fig. 1; Fig. 3, a detail perspectiveView of my improved tablet, showing one sheet elevated and in the act ofbeing turned back on the bindingeyes to the bottom of the tablet; Fig.4, a modification shqwing a full-size broken plan of one corner of thetablet and its case or backing frame when the latter is provided with aninelastic tape, which is drawn and tied at the upper edge; and Fig. 5, aplan of a music-book with my improvements applied thereto.

A represents an ordinary drawing tablet or sketch-block composed of anumber of leaves or exercise-sheets upon which the pupil draws. Suchsheets may be blank ones and used by an artist or draftsman, or they maybe provided with writing-exercises for the student, as is obvious.

I prefer to independently or loosely connectthe several sheets of thetablet together,so that they may be readily separated and hinged orturned back in succession, the finished top one with its face againstthe back or bottom of the lowermost one, and operated as shown by thearrow in Fig. 3. This I accomplish. by means of the stiff metallic spliteyes or fastening-rings a a, (more clearly shown. in Fig. 2,) whichareinserted in openings a in said sheets. The projecting portions of theeyes or rings a furnish a suitable receptacle for the drawingpencil B,as shown in Figs. 1 and 2, when not in use.

0 represents a backing frame or case, into which the tablet A isinseated, the outer edges of said backing-frame being turned upwardlyand inwardly to overlap theseveral outer edges of said tablet, and thewhole detachably secured in place by means of a cord or tape, a, lyingwithin a hem on the inner edges thereof.

The backingframe O is made of any suitable material, but preferably ofcolored muslin, slit or mitered at its four corners, to fit properly inplace on the tablet and at the same time present a neat appearance. Theupper end of case 0 is provided withslots or openings D foraccommodating the projecting portions of the hinge-rings a a on thetablet.

The tighteningcord c, for detachably securing case (J on the tablet, ispreferably an elastic one, and thereby facilitates the attachment orremoval of said case when it is desired to turn a sheet back for anotherlesson or to remove the tablet altogether, to be replaced by a new one.7

In Fig. 4 I have shown how I construct the backing-frame when anordinary inelastic cord or tape is used for securing it in place. Acentral opening, I), is made in its hemmed edge,

and the ends (1 dof the cord drawn outwardly and there tied in a bow, orotherwise suitably fastened.

In the use of my backing-case asupplemental bottom and an edging shieldor protector are provided for the tablet, leaving an open working-sighton its face, and said case effectually preserves the several sheets, andparticularly the finished ones, intact against soiling, rupture, orother damage.

My case or backing and hinge-rings may also be used in connection withsheet-music, as shown in Fig. 5, the inner edges of the several sheetsbeing connected together by said hingerings which allow them to lie flatwhen open and in use.

Suitable openings are made in the backing, as shown, for theaccommodation of the projecting parts of said binding hinge-rings.

I claim 1. A removable protectingoase or backingframe for adrawing-tablet or other matter in sheet form, composed of the backingframe or case 0, having its edges upwardly and inwardly turned andprovided with a tightening-cord, c, the whole engaging the several outeredges and backs of said tablet or other sheet matter, substantially asand for the purpose specified.

2. The combination, with adrawing-tablet or other matter in sheet form,A, and a removable backing frame or case, 0, the latter being providedwith atightening-cord or drawstring, c, and slots or openings D, ofstiffrings or eyes a a, loosely uniting or binding the upper ends of theseveral leaves or sheets of said tablet together and projecting throughsaid slots or openings D in the backing-frame to form a convenient andsafe receptacle for the drawing-pencil or Writing implement,substantially as herein set forth.

In testimony of which invention I have hereunto set my hand.

BERTHA E. FORBRIGER.

Witnesses:

JOHN E. J oNEs, JOHN ADAM.

